He was a major player in “Tebowmania.” Now, Daniel Fells is signing up to join forces with that NFL phenomenon known as the “Gronk.”

The Patriots have reached an agreement on a three-year deal that adds Fells’ services to the most talented tight-end tandem in football: Rob Gronkowski and Aaron Hernandez.

In a move reported later on Monday that he actually foreshadowed by tweeting, “This time around, things will be different…,” wide receiver Donte’ Stallworth is returning on a one-year deal five seasons after a previous stint in New England.

Agent Rick Smith tweeted that his client, offensive lineman Robert Gallery, had come to an agreement in principle on a one-year deal with the Patriots.

Also, the team officially announced the signings of defensive end Trevor Scott (an agreement previously reported) and defensive back Marquice Cole.

While the addition of Fells is a depth acquisition (as are the others), as part of that it could also allow Hernandez, a pass catcher first and a blocker second, to focus his attention on receiving.

At the very least, it aids the Patriots in an area where they spent the bulk of 2011 utilizing rookie offensive tackle Nate Solder as their third option. With Matt Light said to be pondering retirement and Sebastian Vollmer’s recurring health issues, Solder may very well be needed to play tackle on a full-time basis in 2012.

The 28-year-old Fells originally signed as a rookie free agent out of California-Davis with the Atlanta Falcons in 2006, but didn’t appear in his first game until 2008.

By then, Fells had spent time on the Falcons’ 53-man roster and on practice squads in Oakland and Tampa Bay.

Signed off the Buccaneers’ practice squad, Fells spent three years in St. Louis, his most productive season coming in 2010 when he had 41 receptions.

Moving on to Denver as a free agent, Fells caught 19 passes for 256 yards and three TDs in 2011.

It was Fells whose 28-yard reception with 33 seconds left and 3-yard TD reception 16 seconds later were key components in the Broncos’ startling comeback to an 18-15 overtime victory at Miami last Oct. 23.

Thus, “Tebowmania” – that game was Tim Tebow’s first start of the 2011 season – was borne.

A first-round pick (13th overall) of the Saints out of Tennessee in the 2002 NFL Draft, Stallworth has caught 320 passes for 4,774 yards and 34 TDs in 114 games, 60 starts, in a career that has taken him from New Orleans to Philadelphia to New England to Cleveland to Baltimore to Washington and now back to New England again.

Stallworth contributed 46 receptions for 697 yards and three TDs to the Patriots’ pursuit of perfection in 2007.

In 11 games with the Redskins last year, the six-foot, 197-pounder had 22 catches for 309 yards and two TDs.

Stallworth is the third wide receiver to come to terms with the Patriots since the start of the free agency period, joining Brandon Lloyd and Anthony Gonzalez.

Also 31, Gallery also adds depth to the Pats.

The second overall pick in the 2004 draft, the Iowa product spent seven seasons with the Raiders prior to relocating to Seattle as a free agent in 2011.

The 6-foot-7, 325-pounder was released by the Seahawks last Wednesday after starting 12 games at guard while suffering knee and groin injuries, the latter requiring surgery, in 2011.

Gallery, who has appeared in 104 games, starting 103, can play guard or tackle.

A sixth-round draft pick of the Raiders out of Buffalo in 2008, the 6-foot-5, 255-pound Scott started 16 of 58 games and had 131/2 sacks in that time.

His acquisition gives the Patriots a bit of insurance as free agent Mark Anderson (10 sacks with the team in 2011) continues to be wooed.

Cole, 28, is a three-year veteran with the New York Jets who originally signed with the Raiders as a rookie free agent out of Northwestern in 2007 who spent time in Tennessee and with the Saints before landing with the Jets in 2009.

Five-foot-10 and 192 pounds, Cole has appeared in 37 games, starting one, registering 14 tackles on defense and two interceptions, returning one against the Buffalo Bills on Jan. 2, 2011, 35 yards for a score.

In addition to vying for time in the secondary, Cole could also contribute on special teams where he has been credited with 45 tackles over his career.